Garry has published numerous book chapters and journal articles, and two popular-level books. His long-term project (God willing) is to publish a multi-volume organic study of penal substitutionary atonement formed by the way in which the Gospels use the figures, types, and covenant of the Old Testament to interpret the person and work of Christ, taking the historical proponents of the doctrine as teachers, and exploring pertinent dogmatic questions at the points where they naturally arise within that covenantally-shaped framework.